The 18-55mm kit lens shipped as standard with most Pentax DSLRs is not one of the world's greatest lenses. The zoom range is modest and the optical performance is a little below average, with soft-edge definition and a fair amount of chromatic aberration.

This is an excellent lens. The image quality from this lens is superb and it is comparible in sharpness to my 31mm f1.8 FA lens.

A fast and quite compact lens, at least compared to the excellent but clumsy Pentax FA* 2.8/28-70mmAL, I used up to now. Although the first reviews in photo magazines were somehow mixed, I finally gave it try and I don't regret it..

I was hesitant to order this lens due to quite a bit of chatter on the internet regarding focusing issues with this lens. Mine is a little soft on the outer edges at 16-20mm if you really pixel peep.Other than that it is an amazingly sharp lens with great color reproduction.

near silent focusing; outstanding IQ

There have been some quality control issues with this lens

This is the lens I keep on my camera at all times because it is versitle and has a wide range of uses from low light to bright sunlight. I have taken over 3,000 images with this lens and to date have not had any problems.

The build quality of the Pentax lens is very high thanks to quality materials and weather-sealing. The broad, rubberized zoom and focus control rings operate very smooth. Thanks to an internal focusing system (IF) the front element does not rotate so using a polarizer is no problem.

It is just a work horse. Great seals that keep the elements out and super optics. What else is there?

Consistent Output; Durable; Easily Interchangeable; Fast / accurate auto-focus; Rugged; Strong Construction

This lens is OK. It does a nice job, but end up doing a little manipulation to the photo in my AcdSee using the sharpening. Use for outdoor team photos and it works ok.

Consistent Output; Durable; Easily Interchangeable; Lightweight; Strong Construction

Blurry Focus; Slow Focus

The gold ring around the front of its barrel tells you that this is a serious lens. Its f/2.8 maximum aperture is maintained right across the zoom range and although this results in a rather large lens it is very well balanced and therefore comfortable to hold and use.

Nice balance and robust feel

Slightly stiff and jerky zoom action